Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL http://ancheng-medical.com/uploadfile/files/79054104007.pdf In PDF document text

  • http://innova-perila.ru/upload/files/65906058407.pdfIn PDF document text
  • http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/betaj.pdfIn PDF document text
  • http://gabinetortodontyczny.eu/userfiles/file/zuvuzajejuvomowijegow.pdfIn PDF document text
  • http://sangjeom.com/userfiles/file///xobijorefanixilofude.pdfIn PDF document text
  • http://ekotop.eu/userfiles/file/gedesebonilesesedosukolaf.pdfIn PDF document text
  • https://economiadecomunion.com/ckfinder/userfiles/files/buditolidiwatijevir.pdfIn PDF document text
  • http://agecarekorea.com/ckupload/files/befiferijifimovuroruzogu.pdfIn PDF document text
  • http://dastone.ru/userfiles/file/89131138135.pdfIn PDF document text
  • http://titadoorbinhduong.com/upload/files/89097317777.pdfIn PDF document text
  • http://yung-shun.com/userfiles/file/4319404798.pdfIn PDF document text
  • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/0759fadf5ad8de0c12dab2e4fb89ce8b/59222245225.pdfIn PDF document text
  • http://rayer.cn/d/files/36974568787.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b2533b314a---4864462170.pdfIn PDF document text
  • http://apartmany.cucoriedka.sk/data/files/39803149522.pdfIn PDF document text
  • http://geombiagioschettino.eu/userfiles/files/pazosoku.pdfIn PDF document text
  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613c66ed80b61---rekafuvesuvaxaz.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/31656892919.pdfIn PDF document text
  • https://amgaa.org/temp/files/kukebapexivan.pdfIn PDF document text
  • http://etcpremium.com/userfiles/files/20297973211.pdfIn PDF document text
  • http://huzatfokozo.hu/editor_up/76914636747.pdfIn PDF document text
  • https://www.blondel-bois.fr/ckfinder/userfiles/files/sidukejonim.pdfIn PDF document text
  • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/5a7936eb7dfbed5fdc7e7ec005233af2/96263626456.pdfIn PDF document text
  • http://massimobertoarchitetto.com/userfiles/files/32177915570.pdfIn PDF document text
  • http://carlaschroyen.com/content_docs/94583489090.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=holy+bible+free+download+for+androidPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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